Daikin EWAD420T-XSB2 [11/81] High pressure side manometers opt code 63 low pressure side manometers opt code 64

OPTIONS

11/73

Brine Version (opt. code 08) For operation with temperature at the outlet of the evaporator below 4°C,

the unit must operate with glycol mixture (with ethylene or propylene glycol) and the Brine Version

option must be selected. The Brine version provides dedicated control function and enhanced insulation -

Opt. incompatibility: 29

Evaporator flange KIT (opt. code 21) The flange kit includes flange, counter -flange and gaskets,

bolted together with fasteners and nuts - Opt. incompatibility: 20

Suction line shut-off valve (opt. code 62) Installed on the suction port of the compressor to facilitate

maintenance operation.

High pressure side manometers (opt. code 63)

Low pressure side manometers (opt. code 64)

Hydronic kits:

- One centrifugal pump (Low lift) (opt. code 78) - Opt. incompatibility: all the other centrifugal

pumps

- One centrifugal pump (high lift) (opt. code 79) - Opt. incompatibility: all the other centrifugal

pumps

- Two centrifugal pumps (Low lift) (opt. code 80) - Opt. incompatibility: all the other centrifugal

pumps

- Two centrifugal pumps (high lift) (opt. code 81) - Opt. incompatibility: all the other centrifugal

pumps

Unit mounted hydronic kits are available with single and dual pumps. The Low lift kits provides an

average available head of 100 kPa at chiller standard conditions. The High lift kits provides an average

available head of 200 kPa at chiller standard conditions. The kit is completed with pressure gauge, safety

valve, drain valve. The motor pump is protected by a circuit breaker installed in control panel. The kit is

assembled and wired to the control panel. The pipe and pump are protected from freezing with an

additional electrical heater. In case of unit equipped with hydronic kit on board selected to operate with

glycol mixture, contact factory.

Double pressure relief valve with diverter (opt. code 91)

E-coating microchannel coils (opt. code 139) As protection, a layer of an epoxy polymer is added on

the surface of the exchanger. The process consists in the complete immersion of the exchanger in the

epoxy polymer solution. An electric voltage applied to the exchanger causes a difference with the

electrical charge of the polymer molecules that, as result, are drawn to the metal. The thickness

controlled by the applied voltage. The result is a uniform layer of epoxy polymers applied all over the

exchanger surface. A final UV top-coat treatment is applied on the coil surface. The treatment is

recommended in all application where high risk of corrosion exist (eg: high polluted urban, costal,

industrial environments and their combinations). Opt. incompatibility: 153.

Unit guards (to cover unit access) (opt. code 140)

Wire mesh that cover the access around the unit.

Side panels on coil ends (opt. code 141) Protection carter on both side of each condensing module.